GPP Adding printers slow, Vbscript hit and miss

Got a real issue with Windows 7 and printers,

We used a vbscript in the past to add to shared printers which worked great in XP, however that same vbscript is very hit and miss in a domain environment whereby sometimes printers map, sometimes they don't.

So i moved to using Group Policy Preferences, and that killed the logon speed, the duration is as much as 5-6 minutes to logon.

So what do i do?

Any had same probs?

anyone?

Curious that you're getting such a hit on GPO. What are your settings for processing? Are you applying lots of GPO's or one? Do you have loop back processing enabled? What's your network like?